842 lines
21 KiB
C
842 lines
21 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2008 Semihalf
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*
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* (C) Copyright 2000-2004
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* DENX Software Engineering
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* Wolfgang Denk, wd@denx.de
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*
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* Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
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* FIT image specific code abstracted from mkimage.c
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* some functions added to address abstraction
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*
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* All rights reserved.
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*/
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#include "imagetool.h"
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#include "fit_common.h"
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#include "mkimage.h"
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#include <image.h>
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#include <stdarg.h>
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#include <version.h>
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#include <u-boot/crc.h>
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static image_header_t header;
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static int fit_add_file_data(struct image_tool_params *params, size_t size_inc,
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const char *tmpfile)
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{
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int tfd, destfd = 0;
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void *dest_blob = NULL;
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off_t destfd_size = 0;
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struct stat sbuf;
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void *ptr;
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int ret = 0;
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tfd = mmap_fdt(params->cmdname, tmpfile, size_inc, &ptr, &sbuf, true,
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false);
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if (tfd < 0)
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return -EIO;
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if (params->keydest) {
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struct stat dest_sbuf;
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destfd = mmap_fdt(params->cmdname, params->keydest, size_inc,
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&dest_blob, &dest_sbuf, false,
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false);
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if (destfd < 0) {
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ret = -EIO;
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goto err_keydest;
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}
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destfd_size = dest_sbuf.st_size;
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}
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/* for first image creation, add a timestamp at offset 0 i.e., root */
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if (params->datafile) {
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time_t time = imagetool_get_source_date(params->cmdname,
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sbuf.st_mtime);
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ret = fit_set_timestamp(ptr, 0, time);
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}
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if (!ret) {
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ret = fit_add_verification_data(params->keydir, dest_blob, ptr,
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params->comment,
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params->require_keys,
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params->engine_id,
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params->cmdname);
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}
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if (dest_blob) {
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munmap(dest_blob, destfd_size);
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close(destfd);
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}
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err_keydest:
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munmap(ptr, sbuf.st_size);
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close(tfd);
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return ret;
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}
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/**
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* fit_calc_size() - Calculate the approximate size of the FIT we will generate
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*/
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static int fit_calc_size(struct image_tool_params *params)
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{
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struct content_info *cont;
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int size, total_size;
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size = imagetool_get_filesize(params, params->datafile);
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if (size < 0)
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return -1;
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total_size = size;
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if (params->fit_ramdisk) {
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size = imagetool_get_filesize(params, params->fit_ramdisk);
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if (size < 0)
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return -1;
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total_size += size;
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}
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for (cont = params->content_head; cont; cont = cont->next) {
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size = imagetool_get_filesize(params, cont->fname);
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if (size < 0)
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return -1;
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/* Add space for properties */
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total_size += size + 300;
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}
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/* Add plenty of space for headers, properties, nodes, etc. */
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total_size += 4096;
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return total_size;
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}
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static int fdt_property_file(struct image_tool_params *params,
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void *fdt, const char *name, const char *fname)
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{
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struct stat sbuf;
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void *ptr;
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int ret;
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int fd;
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fd = open(fname, O_RDWR | O_BINARY);
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if (fd < 0) {
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fprintf(stderr, "%s: Can't open %s: %s\n",
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params->cmdname, fname, strerror(errno));
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return -1;
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}
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if (fstat(fd, &sbuf) < 0) {
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fprintf(stderr, "%s: Can't stat %s: %s\n",
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params->cmdname, fname, strerror(errno));
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goto err;
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}
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ret = fdt_property_placeholder(fdt, "data", sbuf.st_size, &ptr);
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if (ret)
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goto err;
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ret = read(fd, ptr, sbuf.st_size);
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if (ret != sbuf.st_size) {
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fprintf(stderr, "%s: Can't read %s: %s\n",
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params->cmdname, fname, strerror(errno));
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goto err;
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}
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close(fd);
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return 0;
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err:
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close(fd);
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return -1;
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}
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static int fdt_property_strf(void *fdt, const char *name, const char *fmt, ...)
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{
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char str[100];
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va_list ptr;
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va_start(ptr, fmt);
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vsnprintf(str, sizeof(str), fmt, ptr);
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va_end(ptr);
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return fdt_property_string(fdt, name, str);
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}
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static void get_basename(char *str, int size, const char *fname)
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{
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const char *p, *start, *end;
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int len;
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/*
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* Use the base name as the 'name' field. So for example:
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*
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* "arch/arm/dts/sun7i-a20-bananapro.dtb"
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* becomes "sun7i-a20-bananapro"
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*/
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p = strrchr(fname, '/');
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start = p ? p + 1 : fname;
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p = strrchr(fname, '.');
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end = p ? p : fname + strlen(fname);
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len = end - start;
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if (len >= size)
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len = size - 1;
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memcpy(str, start, len);
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str[len] = '\0';
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}
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/**
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* fit_write_images() - Write out a list of images to the FIT
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*
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* We always include the main image (params->datafile). If there are device
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* tree files, we include an fdt- node for each of those too.
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*/
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static int fit_write_images(struct image_tool_params *params, char *fdt)
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{
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struct content_info *cont;
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const char *typename;
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char str[100];
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int upto;
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int ret;
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fdt_begin_node(fdt, "images");
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/* First the main image */
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typename = genimg_get_type_short_name(params->fit_image_type);
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snprintf(str, sizeof(str), "%s-1", typename);
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fdt_begin_node(fdt, str);
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fdt_property_string(fdt, FIT_DESC_PROP, params->imagename);
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fdt_property_string(fdt, FIT_TYPE_PROP, typename);
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fdt_property_string(fdt, FIT_ARCH_PROP,
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genimg_get_arch_short_name(params->arch));
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fdt_property_string(fdt, FIT_OS_PROP,
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genimg_get_os_short_name(params->os));
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fdt_property_string(fdt, FIT_COMP_PROP,
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genimg_get_comp_short_name(params->comp));
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fdt_property_u32(fdt, FIT_LOAD_PROP, params->addr);
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fdt_property_u32(fdt, FIT_ENTRY_PROP, params->ep);
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/*
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* Put data last since it is large. SPL may only load the first part
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* of the DT, so this way it can access all the above fields.
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*/
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ret = fdt_property_file(params, fdt, FIT_DATA_PROP, params->datafile);
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if (ret)
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return ret;
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fdt_end_node(fdt);
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/* Now the device tree files if available */
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upto = 0;
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for (cont = params->content_head; cont; cont = cont->next) {
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if (cont->type != IH_TYPE_FLATDT)
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continue;
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typename = genimg_get_type_short_name(cont->type);
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snprintf(str, sizeof(str), "%s-%d", FIT_FDT_PROP, ++upto);
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fdt_begin_node(fdt, str);
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get_basename(str, sizeof(str), cont->fname);
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fdt_property_string(fdt, FIT_DESC_PROP, str);
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ret = fdt_property_file(params, fdt, FIT_DATA_PROP,
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cont->fname);
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if (ret)
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return ret;
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fdt_property_string(fdt, FIT_TYPE_PROP, typename);
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fdt_property_string(fdt, FIT_ARCH_PROP,
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genimg_get_arch_short_name(params->arch));
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fdt_property_string(fdt, FIT_COMP_PROP,
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genimg_get_comp_short_name(IH_COMP_NONE));
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fdt_end_node(fdt);
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}
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/* And a ramdisk file if available */
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if (params->fit_ramdisk) {
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fdt_begin_node(fdt, FIT_RAMDISK_PROP "-1");
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fdt_property_string(fdt, FIT_TYPE_PROP, FIT_RAMDISK_PROP);
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fdt_property_string(fdt, FIT_OS_PROP,
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genimg_get_os_short_name(params->os));
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fdt_property_string(fdt, FIT_ARCH_PROP,
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genimg_get_arch_short_name(params->arch));
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ret = fdt_property_file(params, fdt, FIT_DATA_PROP,
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params->fit_ramdisk);
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if (ret)
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return ret;
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fdt_end_node(fdt);
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}
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fdt_end_node(fdt);
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return 0;
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}
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/**
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* fit_write_configs() - Write out a list of configurations to the FIT
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*
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* If there are device tree files, we include a configuration for each, which
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* selects the main image (params->datafile) and its corresponding device
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* tree file.
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*
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* Otherwise we just create a configuration with the main image in it.
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*/
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static void fit_write_configs(struct image_tool_params *params, char *fdt)
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{
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struct content_info *cont;
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const char *typename;
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char str[100];
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int upto;
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fdt_begin_node(fdt, "configurations");
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fdt_property_string(fdt, FIT_DEFAULT_PROP, "conf-1");
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upto = 0;
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for (cont = params->content_head; cont; cont = cont->next) {
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if (cont->type != IH_TYPE_FLATDT)
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continue;
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typename = genimg_get_type_short_name(cont->type);
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snprintf(str, sizeof(str), "conf-%d", ++upto);
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fdt_begin_node(fdt, str);
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get_basename(str, sizeof(str), cont->fname);
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fdt_property_string(fdt, FIT_DESC_PROP, str);
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typename = genimg_get_type_short_name(params->fit_image_type);
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snprintf(str, sizeof(str), "%s-1", typename);
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fdt_property_string(fdt, typename, str);
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fdt_property_string(fdt, FIT_LOADABLE_PROP, str);
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if (params->fit_ramdisk)
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fdt_property_string(fdt, FIT_RAMDISK_PROP,
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FIT_RAMDISK_PROP "-1");
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snprintf(str, sizeof(str), FIT_FDT_PROP "-%d", upto);
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fdt_property_string(fdt, FIT_FDT_PROP, str);
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fdt_end_node(fdt);
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}
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if (!upto) {
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fdt_begin_node(fdt, "conf-1");
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typename = genimg_get_type_short_name(params->fit_image_type);
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snprintf(str, sizeof(str), "%s-1", typename);
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fdt_property_string(fdt, typename, str);
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if (params->fit_ramdisk)
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fdt_property_string(fdt, FIT_RAMDISK_PROP,
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FIT_RAMDISK_PROP "-1");
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fdt_end_node(fdt);
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}
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fdt_end_node(fdt);
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}
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static int fit_build_fdt(struct image_tool_params *params, char *fdt, int size)
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{
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int ret;
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ret = fdt_create(fdt, size);
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if (ret)
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return ret;
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fdt_finish_reservemap(fdt);
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fdt_begin_node(fdt, "");
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fdt_property_strf(fdt, FIT_DESC_PROP,
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"%s image with one or more FDT blobs",
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genimg_get_type_name(params->fit_image_type));
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fdt_property_strf(fdt, "creator", "U-Boot mkimage %s", PLAIN_VERSION);
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fdt_property_u32(fdt, "#address-cells", 1);
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ret = fit_write_images(params, fdt);
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if (ret)
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return ret;
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fit_write_configs(params, fdt);
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fdt_end_node(fdt);
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ret = fdt_finish(fdt);
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if (ret)
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return ret;
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return fdt_totalsize(fdt);
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}
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static int fit_build(struct image_tool_params *params, const char *fname)
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{
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char *buf;
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int size;
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int ret;
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int fd;
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size = fit_calc_size(params);
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if (size < 0)
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return -1;
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buf = malloc(size);
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if (!buf) {
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fprintf(stderr, "%s: Out of memory (%d bytes)\n",
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params->cmdname, size);
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return -1;
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}
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ret = fit_build_fdt(params, buf, size);
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if (ret < 0) {
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fprintf(stderr, "%s: Failed to build FIT image\n",
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params->cmdname);
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goto err_buf;
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}
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size = ret;
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fd = open(fname, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0666);
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if (fd < 0) {
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fprintf(stderr, "%s: Can't open %s: %s\n",
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params->cmdname, fname, strerror(errno));
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goto err_buf;
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}
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ret = write(fd, buf, size);
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if (ret != size) {
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fprintf(stderr, "%s: Can't write %s: %s\n",
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params->cmdname, fname, strerror(errno));
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goto err;
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}
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close(fd);
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free(buf);
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return 0;
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err:
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close(fd);
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err_buf:
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free(buf);
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return -1;
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}
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/**
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* fit_extract_data() - Move all data outside the FIT
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*
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* This takes a normal FIT file and removes all the 'data' properties from it.
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* The data is placed in an area after the FIT so that it can be accessed
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* using an offset into that area. The 'data' properties turn into
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* 'data-offset' properties.
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*
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* This function cannot cope with FITs with 'data-offset' properties. All
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* data must be in 'data' properties on entry.
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*/
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static int fit_extract_data(struct image_tool_params *params, const char *fname)
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{
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void *buf;
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int buf_ptr;
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int fit_size, new_size;
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int fd;
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struct stat sbuf;
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void *fdt;
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int ret;
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int images;
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int node;
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fd = mmap_fdt(params->cmdname, fname, 0, &fdt, &sbuf, false, false);
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if (fd < 0)
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return -EIO;
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fit_size = fdt_totalsize(fdt);
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/* Allocate space to hold the image data we will extract */
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buf = malloc(fit_size);
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if (!buf) {
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ret = -ENOMEM;
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goto err_munmap;
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}
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buf_ptr = 0;
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images = fdt_path_offset(fdt, FIT_IMAGES_PATH);
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if (images < 0) {
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debug("%s: Cannot find /images node: %d\n", __func__, images);
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ret = -EINVAL;
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goto err_munmap;
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}
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for (node = fdt_first_subnode(fdt, images);
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node >= 0;
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node = fdt_next_subnode(fdt, node)) {
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const char *data;
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int len;
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data = fdt_getprop(fdt, node, FIT_DATA_PROP, &len);
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if (!data)
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continue;
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memcpy(buf + buf_ptr, data, len);
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debug("Extracting data size %x\n", len);
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ret = fdt_delprop(fdt, node, FIT_DATA_PROP);
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if (ret) {
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ret = -EPERM;
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goto err_munmap;
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}
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if (params->external_offset > 0) {
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/* An external offset positions the data absolutely. */
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fdt_setprop_u32(fdt, node, FIT_DATA_POSITION_PROP,
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params->external_offset + buf_ptr);
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} else {
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fdt_setprop_u32(fdt, node, FIT_DATA_OFFSET_PROP,
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buf_ptr);
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}
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fdt_setprop_u32(fdt, node, FIT_DATA_SIZE_PROP, len);
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buf_ptr += (len + 3) & ~3;
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}
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/* Pack the FDT and place the data after it */
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fdt_pack(fdt);
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debug("Size reduced from %x to %x\n", fit_size, fdt_totalsize(fdt));
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debug("External data size %x\n", buf_ptr);
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new_size = fdt_totalsize(fdt);
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new_size = (new_size + 3) & ~3;
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munmap(fdt, sbuf.st_size);
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if (ftruncate(fd, new_size)) {
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debug("%s: Failed to truncate file: %s\n", __func__,
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strerror(errno));
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ret = -EIO;
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goto err;
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}
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/* Check if an offset for the external data was set. */
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if (params->external_offset > 0) {
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if (params->external_offset < new_size) {
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debug("External offset %x overlaps FIT length %x",
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params->external_offset, new_size);
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ret = -EINVAL;
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goto err;
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}
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new_size = params->external_offset;
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}
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if (lseek(fd, new_size, SEEK_SET) < 0) {
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debug("%s: Failed to seek to end of file: %s\n", __func__,
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strerror(errno));
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ret = -EIO;
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goto err;
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}
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if (write(fd, buf, buf_ptr) != buf_ptr) {
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debug("%s: Failed to write external data to file %s\n",
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__func__, strerror(errno));
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ret = -EIO;
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|
goto err;
|
|
}
|
|
free(buf);
|
|
close(fd);
|
|
return 0;
|
|
|
|
err_munmap:
|
|
munmap(fdt, sbuf.st_size);
|
|
err:
|
|
if (buf)
|
|
free(buf);
|
|
close(fd);
|
|
return ret;
|
|
}
|
|
|
|
static int fit_import_data(struct image_tool_params *params, const char *fname)
|
|
{
|
|
void *fdt, *old_fdt;
|
|
int fit_size, new_size, size, data_base;
|
|
int fd;
|
|
struct stat sbuf;
|
|
int ret;
|
|
int images;
|
|
int node;
|
|
|
|
fd = mmap_fdt(params->cmdname, fname, 0, &old_fdt, &sbuf, false, false);
|
|
if (fd < 0)
|
|
return -EIO;
|
|
fit_size = fdt_totalsize(old_fdt);
|
|
data_base = (fit_size + 3) & ~3;
|
|
|
|
/* Allocate space to hold the new FIT */
|
|
size = sbuf.st_size + 16384;
|
|
fdt = malloc(size);
|
|
if (!fdt) {
|
|
fprintf(stderr, "%s: Failed to allocate memory (%d bytes)\n",
|
|
__func__, size);
|
|
ret = -ENOMEM;
|
|
goto err_has_fd;
|
|
}
|
|
ret = fdt_open_into(old_fdt, fdt, size);
|
|
if (ret) {
|
|
debug("%s: Failed to expand FIT: %s\n", __func__,
|
|
fdt_strerror(errno));
|
|
ret = -EINVAL;
|
|
goto err_has_fd;
|
|
}
|
|
|
|
images = fdt_path_offset(fdt, FIT_IMAGES_PATH);
|
|
if (images < 0) {
|
|
debug("%s: Cannot find /images node: %d\n", __func__, images);
|
|
ret = -EINVAL;
|
|
goto err_has_fd;
|
|
}
|
|
|
|
for (node = fdt_first_subnode(fdt, images);
|
|
node >= 0;
|
|
node = fdt_next_subnode(fdt, node)) {
|
|
int buf_ptr;
|
|
int len;
|
|
|
|
buf_ptr = fdtdec_get_int(fdt, node, "data-offset", -1);
|
|
len = fdtdec_get_int(fdt, node, "data-size", -1);
|
|
if (buf_ptr == -1 || len == -1)
|
|
continue;
|
|
debug("Importing data size %x\n", len);
|
|
|
|
ret = fdt_setprop(fdt, node, "data", fdt + data_base + buf_ptr,
|
|
len);
|
|
if (ret) {
|
|
debug("%s: Failed to write property: %s\n", __func__,
|
|
fdt_strerror(ret));
|
|
ret = -EINVAL;
|
|
goto err_has_fd;
|
|
}
|
|
}
|
|
|
|
/* Close the old fd so we can re-use it. */
|
|
close(fd);
|
|
|
|
/* Pack the FDT and place the data after it */
|
|
fdt_pack(fdt);
|
|
|
|
new_size = fdt_totalsize(fdt);
|
|
debug("Size expanded from %x to %x\n", fit_size, new_size);
|
|
|
|
fd = open(fname, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0666);
|
|
if (fd < 0) {
|
|
fprintf(stderr, "%s: Can't open %s: %s\n",
|
|
params->cmdname, fname, strerror(errno));
|
|
ret = -EIO;
|
|
goto err_no_fd;
|
|
}
|
|
if (write(fd, fdt, new_size) != new_size) {
|
|
debug("%s: Failed to write external data to file %s\n",
|
|
__func__, strerror(errno));
|
|
ret = -EIO;
|
|
goto err_has_fd;
|
|
}
|
|
|
|
ret = 0;
|
|
|
|
err_has_fd:
|
|
close(fd);
|
|
err_no_fd:
|
|
munmap(old_fdt, sbuf.st_size);
|
|
free(fdt);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* fit_handle_file - main FIT file processing function
|
|
*
|
|
* fit_handle_file() runs dtc to convert .its to .itb, includes
|
|
* binary data, updates timestamp property and calculates hashes.
|
|
*
|
|
* datafile - .its file
|
|
* imagefile - .itb file
|
|
*
|
|
* returns:
|
|
* only on success, otherwise calls exit (EXIT_FAILURE);
|
|
*/
|
|
static int fit_handle_file(struct image_tool_params *params)
|
|
{
|
|
char tmpfile[MKIMAGE_MAX_TMPFILE_LEN];
|
|
char cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN];
|
|
size_t size_inc;
|
|
int ret;
|
|
|
|
/* Flattened Image Tree (FIT) format handling */
|
|
debug ("FIT format handling\n");
|
|
|
|
/* call dtc to include binary properties into the tmp file */
|
|
if (strlen (params->imagefile) +
|
|
strlen (MKIMAGE_TMPFILE_SUFFIX) + 1 > sizeof (tmpfile)) {
|
|
fprintf (stderr, "%s: Image file name (%s) too long, "
|
|
"can't create tmpfile",
|
|
params->imagefile, params->cmdname);
|
|
return (EXIT_FAILURE);
|
|
}
|
|
sprintf (tmpfile, "%s%s", params->imagefile, MKIMAGE_TMPFILE_SUFFIX);
|
|
|
|
/* We either compile the source file, or use the existing FIT image */
|
|
if (params->auto_its) {
|
|
if (fit_build(params, tmpfile)) {
|
|
fprintf(stderr, "%s: failed to build FIT\n",
|
|
params->cmdname);
|
|
return EXIT_FAILURE;
|
|
}
|
|
*cmd = '\0';
|
|
} else if (params->datafile) {
|
|
/* dtc -I dts -O dtb -p 500 -o tmpfile datafile */
|
|
snprintf(cmd, sizeof(cmd), "%s %s -o \"%s\" \"%s\"",
|
|
MKIMAGE_DTC, params->dtc, tmpfile, params->datafile);
|
|
debug("Trying to execute \"%s\"\n", cmd);
|
|
} else {
|
|
snprintf(cmd, sizeof(cmd), "cp \"%s\" \"%s\"",
|
|
params->imagefile, tmpfile);
|
|
}
|
|
if (*cmd && system(cmd) == -1) {
|
|
fprintf (stderr, "%s: system(%s) failed: %s\n",
|
|
params->cmdname, cmd, strerror(errno));
|
|
goto err_system;
|
|
}
|
|
|
|
/* Move the data so it is internal to the FIT, if needed */
|
|
ret = fit_import_data(params, tmpfile);
|
|
if (ret)
|
|
goto err_system;
|
|
|
|
/*
|
|
* Set hashes for images in the blob. Unfortunately we may need more
|
|
* space in either FDT, so keep trying until we succeed.
|
|
*
|
|
* Note: this is pretty inefficient for signing, since we must
|
|
* calculate the signature every time. It would be better to calculate
|
|
* all the data and then store it in a separate step. However, this
|
|
* would be considerably more complex to implement. Generally a few
|
|
* steps of this loop is enough to sign with several keys.
|
|
*/
|
|
for (size_inc = 0; size_inc < 64 * 1024; size_inc += 1024) {
|
|
ret = fit_add_file_data(params, size_inc, tmpfile);
|
|
if (!ret || ret != -ENOSPC)
|
|
break;
|
|
}
|
|
|
|
if (ret) {
|
|
fprintf(stderr, "%s Can't add hashes to FIT blob: %d\n",
|
|
params->cmdname, ret);
|
|
goto err_system;
|
|
}
|
|
|
|
/* Move the data so it is external to the FIT, if requested */
|
|
if (params->external_data) {
|
|
ret = fit_extract_data(params, tmpfile);
|
|
if (ret)
|
|
goto err_system;
|
|
}
|
|
|
|
if (rename (tmpfile, params->imagefile) == -1) {
|
|
fprintf (stderr, "%s: Can't rename %s to %s: %s\n",
|
|
params->cmdname, tmpfile, params->imagefile,
|
|
strerror (errno));
|
|
unlink (tmpfile);
|
|
unlink (params->imagefile);
|
|
return EXIT_FAILURE;
|
|
}
|
|
return EXIT_SUCCESS;
|
|
|
|
err_system:
|
|
unlink(tmpfile);
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* fit_image_extract - extract a FIT component image
|
|
* @fit: pointer to the FIT format image header
|
|
* @image_noffset: offset of the component image node
|
|
* @file_name: name of the file to store the FIT sub-image
|
|
*
|
|
* returns:
|
|
* zero in case of success or a negative value if fail.
|
|
*/
|
|
static int fit_image_extract(
|
|
const void *fit,
|
|
int image_noffset,
|
|
const char *file_name)
|
|
{
|
|
const void *file_data;
|
|
size_t file_size = 0;
|
|
|
|
/* get the "data" property of component at offset "image_noffset" */
|
|
fit_image_get_data(fit, image_noffset, &file_data, &file_size);
|
|
|
|
/* save the "file_data" into the file specified by "file_name" */
|
|
return imagetool_save_subimage(file_name, (ulong) file_data, file_size);
|
|
}
|
|
|
|
/**
|
|
* fit_extract_contents - retrieve a sub-image component from the FIT image
|
|
* @ptr: pointer to the FIT format image header
|
|
* @params: command line parameters
|
|
*
|
|
* returns:
|
|
* zero in case of success or a negative value if fail.
|
|
*/
|
|
static int fit_extract_contents(void *ptr, struct image_tool_params *params)
|
|
{
|
|
int images_noffset;
|
|
int noffset;
|
|
int ndepth;
|
|
const void *fit = ptr;
|
|
int count = 0;
|
|
const char *p;
|
|
|
|
/* Indent string is defined in header image.h */
|
|
p = IMAGE_INDENT_STRING;
|
|
|
|
if (!fit_check_format(fit)) {
|
|
printf("Bad FIT image format\n");
|
|
return -1;
|
|
}
|
|
|
|
/* Find images parent node offset */
|
|
images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
|
|
if (images_noffset < 0) {
|
|
printf("Can't find images parent node '%s' (%s)\n",
|
|
FIT_IMAGES_PATH, fdt_strerror(images_noffset));
|
|
return -1;
|
|
}
|
|
|
|
/* Avoid any overrun */
|
|
count = fit_get_subimage_count(fit, images_noffset);
|
|
if ((params->pflag < 0) || (count <= params->pflag)) {
|
|
printf("No such component at '%d'\n", params->pflag);
|
|
return -1;
|
|
}
|
|
|
|
/* Process its subnodes, extract the desired component from image */
|
|
for (ndepth = 0, count = 0,
|
|
noffset = fdt_next_node(fit, images_noffset, &ndepth);
|
|
(noffset >= 0) && (ndepth > 0);
|
|
noffset = fdt_next_node(fit, noffset, &ndepth)) {
|
|
if (ndepth == 1) {
|
|
/*
|
|
* Direct child node of the images parent node,
|
|
* i.e. component image node.
|
|
*/
|
|
if (params->pflag == count) {
|
|
printf("Extracted:\n%s Image %u (%s)\n", p,
|
|
count, fit_get_name(fit, noffset, NULL));
|
|
|
|
fit_image_print(fit, noffset, p);
|
|
|
|
return fit_image_extract(fit, noffset,
|
|
params->outfile);
|
|
}
|
|
|
|
count++;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fit_check_params(struct image_tool_params *params)
|
|
{
|
|
if (params->auto_its)
|
|
return 0;
|
|
return ((params->dflag && (params->fflag || params->lflag)) ||
|
|
(params->fflag && (params->dflag || params->lflag)) ||
|
|
(params->lflag && (params->dflag || params->fflag)));
|
|
}
|
|
|
|
U_BOOT_IMAGE_TYPE(
|
|
fitimage,
|
|
"FIT Image support",
|
|
sizeof(image_header_t),
|
|
(void *)&header,
|
|
fit_check_params,
|
|
fit_verify_header,
|
|
fit_print_contents,
|
|
NULL,
|
|
fit_extract_contents,
|
|
fit_check_image_types,
|
|
fit_handle_file,
|
|
NULL /* FIT images use DTB header */
|
|
);
|